Commit Graph

1444 Commits

Author SHA1 Message Date
Aaron Tomlin f3aca3d095 nmi: provide the option to issue an NMI back trace to every cpu but current
Sometimes it is preferred not to use the trigger_all_cpu_backtrace()
routine when one wants to avoid capturing a back trace for current.  For
instance if one was previously captured recently.

This patch provides a new routine namely
trigger_allbutself_cpu_backtrace() which offers the flexibility to issue
an NMI to every cpu but current and capture a back trace accordingly.

Patch x86 and sparc to support new routine.

[dzickus@redhat.com: add stub in #else clause]
[dzickus@redhat.com: don't print message in single processor case, wrap with get/put_cpu based on Oleg's suggestion]
[sfr@canb.auug.org.au: undo C99ism]
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-23 16:47:44 -07:00
Linus Torvalds c4222e4635 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc fixes from David Miller:
 "Sparc sparse fixes from Sam Ravnborg"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (67 commits)
  sparc64: fix sparse warnings in int_64.c
  sparc64: fix sparse warning in ftrace.c
  sparc64: fix sparse warning in kprobes.c
  sparc64: fix sparse warning in kgdb_64.c
  sparc64: fix sparse warnings in compat_audit.c
  sparc64: fix sparse warnings in init_64.c
  sparc64: fix sparse warnings in aes_glue.c
  sparc: fix sparse warnings in smp_32.c + smp_64.c
  sparc64: fix sparse warnings in perf_event.c
  sparc64: fix sparse warnings in kprobes.c
  sparc64: fix sparse warning in tsb.c
  sparc64: clean up compat_sigset_t.seta handling
  sparc64: fix sparse "Should it be static?" warnings in signal32.c
  sparc64: fix sparse warnings in sys_sparc32.c
  sparc64: fix sparse warning in pci.c
  sparc64: fix sparse warnings in smp_64.c
  sparc64: fix sparse warning in prom_64.c
  sparc64: fix sparse warning in btext.c
  sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c
  sparc64: fix sparse warning in process_64.c
  ...

Conflicts:
	arch/sparc/include/asm/pgtable_64.h
2014-06-19 07:50:07 -10:00
Linus Torvalds 425553209b PCI changes for the v3.16 merge window:
Enumeration
     - Notify driver before and after device reset (Keith Busch)
     - Use reset notification in NVMe (Keith Busch)
 
   NUMA
     - Warn if we have to guess host bridge node information (Myron Stowe)
     - Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee Suthikulpanit)
     - Clean up and mark early_root_info_init() as deprecated (Suravee Suthikulpanit)
 
   Driver binding
     - Add "driver_override" for force specific binding (Alex Williamson)
     - Fail "new_id" addition for devices we already know about (Bandan Das)
 
   Resource management
     - Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
     - Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
     - Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
     - Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
     - Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
     - Don't convert BAR address to resource if dma_addr_t is too small (Bjorn Helgaas)
     - Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
     - Don't print anything while decoding is disabled (Bjorn Helgaas)
     - Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
     - Add resource allocation comments (Bjorn Helgaas)
     - Restrict 64-bit prefetchable bridge windows to 64-bit resources (Yinghai Lu)
     - Assign i82875p_edac PCI resources before adding device (Yinghai Lu)
 
   PCI device hotplug
     - Remove unnecessary "dev->bus" test (Bjorn Helgaas)
     - Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
     - Fix rphahp endianess issues (Laurent Dufour)
     - Acknowledge spurious "cmd completed" event (Rajat Jain)
     - Allow hotplug service drivers to operate in polling mode (Rajat Jain)
     - Fix cpqphp possible NULL dereference (Rickard Strandqvist)
 
   MSI
     - Replace pci_enable_msi_block() by pci_enable_msi_exact() (Alexander Gordeev)
     - Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
     - Simplify populate_msi_sysfs() (Jan Beulich)
 
   Virtualization
     - Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
     - Mark RTL8110SC INTx masking as broken (Alex Williamson)
 
   Generic host bridge driver
     - Add generic PCI host controller driver (Will Deacon)
 
   Freescale i.MX6
     - Use new clock names (Lucas Stach)
     - Drop old IRQ mapping (Lucas Stach)
     - Remove optional (and unused) IRQs (Lucas Stach)
     - Add support for MSI (Lucas Stach)
     - Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)
 
   Renesas R-Car
     - Add gen2 device tree support (Ben Dooks)
     - Use new OF interrupt mapping when possible (Lucas Stach)
     - Add PCIe driver (Phil Edworthy)
     - Add PCIe MSI support (Phil Edworthy)
     - Add PCIe device tree bindings (Phil Edworthy)
 
   Samsung Exynos
     - Remove unnecessary OOM messages (Jingoo Han)
     - Fix add_pcie_port() section mismatch warning (Sachin Kamat)
 
   Synopsys DesignWare
     - Make MSI ISR shared IRQ aware (Lucas Stach)
 
   Miscellaneous
     - Check for broken config space aliasing (Alex Williamson)
     - Update email address (Ben Hutchings)
     - Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
     - Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
     - Remove unnecessary __ref annotations (Bjorn Helgaas)
     - Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns (Bjorn Helgaas)
     - Fix use of uninitialized MPS value (Bjorn Helgaas)
     - Tidy x86/gart messages (Bjorn Helgaas)
     - Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
     - Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
     - Remove unused serial device IDs (Jean Delvare)
     - Use designated initialization in PCI_VDEVICE (Mark Rustad)
     - Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
     - Configure MPS on ARM (Murali Karicheri)
     - Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
     - Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
     - Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
     - Remove pcibios_add_platform_entries() (Sebastian Ott)
     - Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
     - Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
     - Add and use new pci_is_bridge() interface (Yijing Wang)
     - Make pci_bus_add_device() void (Yijing Wang)
 
   DMA API
     - Clarify physical/bus address distinction in docs (Bjorn Helgaas)
     - Fix typos in docs (Emilio López)
     - Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
     - Change dma_declare_coherent_memory() CPU address to phys_addr_t (Bjorn Helgaas)
     - Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory() (Bjorn Helgaas)
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Merge tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into next

Pull PCI changes from Bjorn Helgaas:
 "Enumeration
    - Notify driver before and after device reset (Keith Busch)
    - Use reset notification in NVMe (Keith Busch)

  NUMA
    - Warn if we have to guess host bridge node information (Myron Stowe)
    - Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee
      Suthikulpanit)
    - Clean up and mark early_root_info_init() as deprecated (Suravee
      Suthikulpanit)

  Driver binding
    - Add "driver_override" for force specific binding (Alex Williamson)
    - Fail "new_id" addition for devices we already know about (Bandan
      Das)

  Resource management
    - Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
    - Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
    - Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
    - Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
    - Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
    - Don't convert BAR address to resource if dma_addr_t is too small
      (Bjorn Helgaas)
    - Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
    - Don't print anything while decoding is disabled (Bjorn Helgaas)
    - Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
    - Add resource allocation comments (Bjorn Helgaas)
    - Restrict 64-bit prefetchable bridge windows to 64-bit resources
      (Yinghai Lu)
    - Assign i82875p_edac PCI resources before adding device (Yinghai Lu)

  PCI device hotplug
    - Remove unnecessary "dev->bus" test (Bjorn Helgaas)
    - Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
    - Fix rphahp endianess issues (Laurent Dufour)
    - Acknowledge spurious "cmd completed" event (Rajat Jain)
    - Allow hotplug service drivers to operate in polling mode (Rajat Jain)
    - Fix cpqphp possible NULL dereference (Rickard Strandqvist)

  MSI
    - Replace pci_enable_msi_block() by pci_enable_msi_exact()
      (Alexander Gordeev)
    - Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
    - Simplify populate_msi_sysfs() (Jan Beulich)

  Virtualization
    - Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
    - Mark RTL8110SC INTx masking as broken (Alex Williamson)

  Generic host bridge driver
    - Add generic PCI host controller driver (Will Deacon)

  Freescale i.MX6
    - Use new clock names (Lucas Stach)
    - Drop old IRQ mapping (Lucas Stach)
    - Remove optional (and unused) IRQs (Lucas Stach)
    - Add support for MSI (Lucas Stach)
    - Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)

  Renesas R-Car
    - Add gen2 device tree support (Ben Dooks)
    - Use new OF interrupt mapping when possible (Lucas Stach)
    - Add PCIe driver (Phil Edworthy)
    - Add PCIe MSI support (Phil Edworthy)
    - Add PCIe device tree bindings (Phil Edworthy)

  Samsung Exynos
    - Remove unnecessary OOM messages (Jingoo Han)
    - Fix add_pcie_port() section mismatch warning (Sachin Kamat)

  Synopsys DesignWare
    - Make MSI ISR shared IRQ aware (Lucas Stach)

  Miscellaneous
    - Check for broken config space aliasing (Alex Williamson)
    - Update email address (Ben Hutchings)
    - Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
    - Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
    - Remove unnecessary __ref annotations (Bjorn Helgaas)
    - Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns
      (Bjorn Helgaas)
    - Fix use of uninitialized MPS value (Bjorn Helgaas)
    - Tidy x86/gart messages (Bjorn Helgaas)
    - Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
    - Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
    - Remove unused serial device IDs (Jean Delvare)
    - Use designated initialization in PCI_VDEVICE (Mark Rustad)
    - Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
    - Configure MPS on ARM (Murali Karicheri)
    - Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
    - Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
    - Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
    - Remove pcibios_add_platform_entries() (Sebastian Ott)
    - Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
    - Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
    - Add and use new pci_is_bridge() interface (Yijing Wang)
    - Make pci_bus_add_device() void (Yijing Wang)

  DMA API
    - Clarify physical/bus address distinction in docs (Bjorn Helgaas)
    - Fix typos in docs (Emilio López)
    - Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
    - Change dma_declare_coherent_memory() CPU address to phys_addr_t
      (Bjorn Helgaas)
    - Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
      (Bjorn Helgaas)"

* tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits)
  MAINTAINERS: Add generic PCI host controller driver
  PCI: generic: Add generic PCI host controller driver
  PCI: imx6: Add support for MSI
  PCI: designware: Make MSI ISR shared IRQ aware
  PCI: imx6: Remove optional (and unused) IRQs
  PCI: imx6: Drop old IRQ mapping
  PCI: imx6: Use new clock names
  i82875p_edac: Assign PCI resources before adding device
  ARM/PCI: Call pcie_bus_configure_settings() to set MPS
  PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning
  PCI: Make pci_bus_add_device() void
  PCI: exynos: Fix add_pcie_port() section mismatch warning
  PCI: Introduce new device binding path using pci_dev.driver_override
  PCI: rcar: Add gen2 device tree support
  PCI: cpqphp: Fix possible null pointer dereference
  PCI: rcar: Add R-Car PCIe device tree bindings
  PCI: rcar: Add MSI support for PCIe
  PCI: rcar: Add Renesas R-Car PCIe driver
  PCI: Fix return value from pci_user_{read,write}_config_*()
  PCI: exynos: Remove unnecessary OOM messages
  ...
2014-06-02 12:15:19 -07:00
Yijing Wang 2f22e68ab4 sparc/PCI: Use pci_is_bridge() to simplify code
Use pci_is_bridge() to simplify code.  No functional change.

Requires: 326c1cdae7 PCI: Rename pci_is_bridge() to pci_has_subordinate()
Requires: 1c86438c94 PCI: Add new pci_is_bridge() interface
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
2014-05-27 14:57:47 -06:00
Toralf Förster 8ecc1bad4c sparc64: fix format string mismatch in arch/sparc/kernel/sysfs.c
found by cppcheck

Signed-off-by: Toralf Förster <toralf.foerster@gmx.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-21 12:54:42 -07:00
Sam Ravnborg 48c7eca5f2 sparc64: fix sparse warning in kgdb_64.c
Fix following warnings:
kgdb_64.c:114:18: warning: symbol 'smp_kgdb_capture_client' was not declared. Should it be static?
kgdb_64.c:161:17: warning: symbol 'kgdb_trap' was not declared. Should it be static?

Add proper prototypes

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:34 -07:00
Sam Ravnborg a1ca187e7d sparc64: fix sparse warnings in compat_audit.c
Fix following warnings:
compat_audit.c:4:10: warning: symbol 'sparc32_dir_class' was not declared. Should it be static?
compat_audit.c:9:10: warning: symbol 'sparc32_chattr_class' was not declared. Should it be static?
compat_audit.c:14:10: warning: symbol 'sparc32_write_class' was not declared. Should it be static?
compat_audit.c:19:10: warning: symbol 'sparc32_read_class' was not declared. Should it be static?
compat_audit.c:24:10: warning: symbol 'sparc32_signal_class' was not declared. Should it be static?
compat_audit.c:29:5: warning: symbol 'sparc32_classify_syscall' was not declared. Should it be static?

Add declarations to kernel.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:34 -07:00
Sam Ravnborg 59dec13b27 sparc64: fix sparse warnings in init_64.c
Fix following warnings:
init_64.c:191:10: warning: symbol 'dcpage_flushes' was not declared. Should it be static?
init_64.c:193:10: warning: symbol 'dcpage_flushes_xcall' was not declared. Should it be static?

Add extern declaration to asm/setup.h and drop local declaration in smp_64.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:34 -07:00
Sam Ravnborg d309129857 sparc: fix sparse warnings in smp_32.c + smp_64.c
Fix following warnings:
smp_32.c:177:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static?
smp_64.c:1202:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static?
smp_64.c:989:6: warning: symbol 'kgdb_roundup_cpus' was not declared. Should it be static?

Add prototype to include/linux/profile.h of setup_profiling_timer
Add missing include to smp_64.c

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:33 -07:00
Sam Ravnborg 265c1ffa59 sparc64: fix sparse warnings in perf_event.c
Fix following sparse warnings:
kernel/perf_event.c:113:1: warning: symbol 'cpu_hw_events' was not declared. Should it be static?
kernel/perf_event.c:1156:6: warning: symbol 'perf_event_grab_pmc' was not declared. Should it be static?
kernel/perf_event.c:1172:6: warning: symbol 'perf_event_release_pmc' was not declared. Should it be static?
kernel/perf_event.c:1672:12: warning: symbol 'init_hw_perf_events' was not declared. Should it be static?
kernel/perf_event.c:1749:52: warning: incorrect type in argument 2 (different address spaces)
kernel/perf_event.c:1772:60: warning: incorrect type in argument 2 (different address spaces)
kernel/perf_event.c:1779:60: warning: incorrect type in argument 2 (different address spaces)

Define the functions static as they are not used outside this file.
Fix it so copy_from_user are supplied with pointers annotated _user

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:33 -07:00
Sam Ravnborg 2f827ea7ce sparc64: fix sparse warnings in kprobes.c
Fix following warnings:
kprobes.c:515:15: warning: symbol 'trampoline_probe_handler' was not declared. Should it be static?
kprobes.c:579:6: warning: symbol 'kretprobe_trampoline_holder' was not declared. Should it be static?

Declare the functions static.
kretprobe_trampoline_holder is magically used without any real
reference so mark is __used, like other arch's do too.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:32 -07:00
Sam Ravnborg c19ac3260c sparc64: clean up compat_sigset_t.seta handling
Use compat_sigset_t rather than opencode the array
Drop "switch (_NSIG_WORDS)" as we know this is always 1
Introduce BUILD_BUG_ON() to catch if this changes

As a side-effect of this fix following sparse warnings:
signal32.c:220:60: warning: invalid access past the end of 'seta' (12 8)
signal32.c:220:42: warning: invalid access past the end of 'seta' (8 8)
signal32.c:219:60: warning: invalid access past the end of 'seta' (20 8)
signal32.c:219:42: warning: invalid access past the end of 'seta' (16 8)
signal32.c:218:60: warning: invalid access past the end of 'seta' (28 8)
signal32.c:218:42: warning: invalid access past the end of 'seta' (24 8)
signal32.c:309:68: warning: invalid access past the end of 'seta' (12 8)
signal32.c:309:46: warning: invalid access past the end of 'seta' (8 8)
signal32.c:308:68: warning: invalid access past the end of 'seta' (20 8)
signal32.c:308:46: warning: invalid access past the end of 'seta' (16 8)
signal32.c:307:68: warning: invalid access past the end of 'seta' (28 8)
signal32.c:307:46: warning: invalid access past the end of 'seta' (24 8)

They all pointed to code that was never executed - so no bugs fixed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:32 -07:00
Sam Ravnborg abaff455f7 sparc64: fix sparse "Should it be static?" warnings in signal32.c
Fix following warnings:
signal32.c:140:6: warning: symbol 'do_sigreturn32' was not declared. Should it be static?
signal32.c:230:17: warning: symbol 'do_rt_sigreturn32' was not declared. Should it be static?
signal32.c:729:6: warning: symbol 'do_signal32' was not declared. Should it be static?
signal32.c:773:16: warning: symbol 'do_sys32_sigstack' was not declared. Should it be static?

Add proper prototypes and drop local prototype

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:32 -07:00
Sam Ravnborg ed8eb75510 sparc64: fix sparse warnings in sys_sparc32.c
Fix following warnings:
sys_sparc32.c:52:17: warning: symbol 'sys32_truncate64' was not declared. Should it be static?
sys_sparc32.c:60:17: warning: symbol 'sys32_ftruncate64' was not declared. Should it be static?
sys_sparc32.c:98:17: warning: symbol 'compat_sys_stat64' was not declared. Should it be static?
sys_sparc32.c:109:17: warning: symbol 'compat_sys_lstat64' was not declared. Should it be static?
sys_sparc32.c:120:17: warning: symbol 'compat_sys_fstat64' was not declared. Should it be static?
sys_sparc32.c:131:17: warning: symbol 'compat_sys_fstatat64' was not declared. Should it be static?
sys_sparc32.c:196:27: warning: symbol 'sys32_pread64' was not declared. Should it be static?
sys_sparc32.c:205:27: warning: symbol 'sys32_pwrite64' was not declared. Should it be static?
sys_sparc32.c:214:17: warning: symbol 'compat_sys_readahead' was not declared. Should it be static?
sys_sparc32.c:222:6: warning: symbol 'compat_sys_fadvise64' was not declared. Should it be static?
sys_sparc32.c:230:6: warning: symbol 'compat_sys_fadvise64_64' was not declared. Should it be static?
sys_sparc32.c:241:6: warning: symbol 'sys32_sync_file_range' was not declared. Should it be static?
sys_sparc32.c:249:17: warning: symbol 'compat_sys_fallocate' was not declared. Should it be static?

Add proper prototypes in systbls.h
Include linux/compat.h to get access to necessary types
Use inverse christmas tree order in includes

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:31 -07:00
Sam Ravnborg 4ac7b8268e sparc64: fix sparse warning in pci.c
Fix following warning:
pci.c:886:5: warning: symbol 'pci64_dma_supported' was not declared. Should it be static?

Add proper prototype in kernel.h and delete local prototype in iommu.c

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:31 -07:00
Sam Ravnborg a0c54a21dd sparc64: fix sparse warnings in smp_64.c
Fix following warnings:
smp_64.c:88:6: warning: symbol 'smp_callin' was not declared. Should it be static?
smp_64.c:133:6: warning: symbol 'cpu_panic' was not declared. Should it be static?
smp_64.c:187:6: warning: symbol 'smp_synchronize_tick_client' was not declared. Should it be static?
smp_64.c:821:18: warning: symbol 'smp_call_function_client' was not declared. Should it be static?
smp_64.c:827:18: warning: symbol 'smp_call_function_single_client' was not declared. Should it be static?
smp_64.c:964:18: warning: symbol 'smp_new_mmu_context_version_client' was not declared. Should it be static?
smp_64.c:1149:6: warning: symbol 'smp_capture' was not declared. Should it be static?
smp_64.c:1171:6: warning: symbol 'smp_release' was not declared. Should it be static?
smp_64.c:1190:18: warning: symbol 'smp_penguin_jailcell' was not declared. Should it be static?
smp_64.c:1410:18: warning: symbol 'smp_receive_signal_client' was not declared. Should it be static?

Add prototypes in kernel.h or asm/smp_64.h as appropriate.
Delete duplicate function kimage_addr_to_ra(), and
adapt parameter to const void * to match the broader use.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:31 -07:00
Sam Ravnborg cfbddd0d0b sparc64: fix sparse warning in prom_64.c
Fix following warning:
prom_64.c:376:6: warning: symbol 'arch_find_n_match_cpu_physical_id' was not declared. Should it be static?

Add missing include to pick up prototype.
Rearrange includes to use the inverse christmas tree structure.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:31 -07:00
Sam Ravnborg f1eabec577 sparc64: fix sparse warning in btext.c
Fix following warning:
btext.c:140:6: warning: symbol 'btext_drawchar' was not declared. Should it be static?

Define the function static as it is only used in this file.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:30 -07:00
Sam Ravnborg 8df52620e6 sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c
Fix following warnings:
kernel/sys_sparc_64.c:643:17: warning: symbol 'sys_kern_features' was not declared. Should it be static?
kernel/unaligned_64.c:297:17: warning: symbol 'kernel_unaligned_trap' was not declared. Should it be static?
kernel/unaligned_64.c:387:5: warning: symbol 'handle_popc' was not declared. Should it be static?
kernel/unaligned_64.c:428:5: warning: symbol 'handle_ldf_stq' was not declared. Should it be static?
kernel/unaligned_64.c:553:6: warning: symbol 'handle_ld_nf' was not declared. Should it be static?
kernel/unaligned_64.c:579:6: warning: symbol 'handle_lddfmna' was not declared. Should it be static?
kernel/unaligned_64.c:643:6: warning: symbol 'handle_stdfmna' was not declared. Should it be static?

Functions that are only used in kernel/ - add prototypes in kernel.h
Functions used outside kernel/ - add prototype in asm/setup.h
Removed local prototypes

One of the local prototypes had wrong signature (return void - not int).

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:30 -07:00
Sam Ravnborg d158450427 sparc64: fix sparse warning in process_64.c
Fix following warning:
process_64.c:91:25: warning: non-ANSI function declaration of function 'arch_cpu_idle_dead'

Add proper (void) to function definition

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:30 -07:00
Sam Ravnborg 9c2d84deec sparc64: fix sparse warning in traps_64.c
Fix following warning:
traps_64.c:2384:6: error: symbol 'die_if_kernel' redeclared with different type (originally declared at include/asm/bug.h:23) - different modifiers

Add proper __noreturn to the implementation to fix this

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:30 -07:00
Sam Ravnborg 2e74a74f27 sparc: drop use of extern for prototypes in arch/sparc/*
Drop the remaining uses of extern for prototypes in .h files
in the sparc specific part of the kernel tree.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:29 -07:00
Sam Ravnborg 77e39a79f3 sparc32: drop tadpole specific code
tadpole.c assigned cpu_pwr_save based on the current configuration.
The rest of the tadpole.c file was only used if cpu_pwr_save was
dereferenced.
But this variable was never dereferenced - and I went back to a 2.6.12
kernel to check (from June 2005) - and not even then was it used.

Drop this code as it has not been in use for ~10 years.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:29 -07:00
Sam Ravnborg 8e9f0935e0 sparc: fix sparse warning in math_{32,64}
Fix following sparse warning:
math_{32,64}.c: warning: symbol 'do_mathemu' was not declared. Should it be static?

Add prototype in processor_{32,64} and drop extern in traps_{32,64}.c

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:28 -07:00
Sam Ravnborg 958b7b0720 sparc32: fix sparse warnings in sys_sparc_32.c
Fix following warnings:
sys_sparc_32.c:32:26: warning: symbol 'sys_getpagesize' was not declared. Should it be static?
sys_sparc_32.c:71:16: warning: symbol 'sparc_pipe' was not declared. Should it be static?
sys_sparc_32.c:96:26: warning: symbol 'sys_mmap2' was not declared. Should it be static?
sys_sparc_32.c:106:26: warning: symbol 'sys_mmap' was not declared. Should it be static?
sys_sparc_32.c:114:6: warning: symbol 'sparc_remap_file_pages' was not declared. Should it be static?
sys_sparc_32.c:127:1: warning: symbol 'c_sys_nis_syscall' was not declared. Should it be static?
sys_sparc_32.c:144:1: warning: symbol 'sparc_breakpoint' was not declared. Should it be static?
sys_sparc_32.c:200:16: warning: symbol 'sys_getdomainname' was not declared. Should it be static?

Adapt systbls.h for use by both sparc32 + sparc64.
In the process modify the return type of a few functions.

Change return type from unsigned long to long:
sys_mmap2()
sys_mmap()

Change return type from int to long:
sparc_pipe()
sys_getdomainname()

The changed return type was done to align with sparc64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:28 -07:00
Sam Ravnborg fcea8b27f9 sparc32: fix sparse warnings in time_32.c
Fix following warnings:
time_32.c:63:1: warning: symbol 'rtc_lock' was not declared. Should it be static?
time_32.c:357:13: warning: symbol 'time_init' was not declared. Should it be static?
time_32.c:148:16: warning: dereference of noderef expression

Add extern definition of rtc_lock in mc146818rtc.h.
time_init() is called from init/main.c - add prototype to kernel.h.
Use proper u32 __iomem * for master_l10_counter.
Fix all users.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:27 -07:00
Sam Ravnborg d2aca8f9a6 sparc32: fix sparse warning in auxio_32.c
Fix following warning:
auxio_32.c:133:33: warning: cast removes address space of expression

To fix this auxio_power_register had to be defined as u8 _iomem.
Use proper sbus operations on the pointer.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:27 -07:00
Sam Ravnborg 7738925de8 sparc32: fix sparse warnings in pcic.c
Fix following warnings:
pcic.c:164:14: warning: symbol 'pcic_regs' was not declared. Should it be static?
pcic.c:165:14: warning: symbol 'pcic_speculative' was not declared. Should it be static?
pcic.c:166:14: warning: symbol 'pcic_trapped' was not declared. Should it be static?
pcic.c:332:66: warning: Using plain integer as NULL pointer
pcic.c:344:66: warning: Using plain integer as NULL pointer
pcic.c:539:38: warning: Using plain integer as NULL pointer
pcic.c:677:1: warning: symbol 'pcic_pin_to_irq' was not declared. Should it be static?
pcic.c:783:6: warning: symbol 'pcic_nmi' was not declared. Should it be static?

Add extern for pcic_regs.
Define a few variables static.
Replace 0 with NULL.
Delete unused funtion pcic_pin_to_irq().
Include kernel.h so we could drop declaration of
t_nmi and add prototype for pcic_nmi.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:27 -07:00
Sam Ravnborg 178f0ffa63 sparc32: fix build breakage
Add forward declaration to kernel.h to fix build breakage
in some configurations

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:26 -07:00
David S. Miller 0eef331a3d sparc64: Use 'ILOG2_4MB' instead of constant '22'.
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03 22:52:50 -07:00
David S. Miller d037d16372 sparc64: Handle 32-bit tasks properly in compute_effective_address().
If we have a 32-bit task we must chop off the top 32-bits of the
64-bit value just as the cpu would.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03 22:33:06 -07:00
David S. Miller 16ce8a30e6 sparc64: Normalize NMI watchdog logging and behavior.
Bring this code in line with the perf based generic NMI watchdog
in kernel/watchdog.c (which we should convert over to at some
point).

In particular, don't do anything super fancy when the watchdog
triggers, and specifically don't do a do_exit() which only makes
things worse.

Either panic(), or WARN().  The latter of which will do all of
the actions such as give us a stack backtrace.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-03 22:25:33 -07:00
Sam Ravnborg e1039fb426 sparc32: introduce asm-generic/io.h
Use asm-generic/io.h definitions where applicable.
The inxx() and outxx() methods whcih was duplicated in pcic.c +
leon_pci.c are replaced by a set of static inlins from asm-generic/io.h

iomap.c is replaced by the generic versions, but are still
present to support sparc64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:30:21 -04:00
Sam Ravnborg 01c6505d60 sparc32: replace flip_dword() with swab32()
The latter is a generic implmentation.
flip_{,d}word() is sparc32 specific and will be dropped.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:30:21 -04:00
Kirill Tkhai 49b6c01f4c sparc64: Make itc_sync_lock raw
One more place where we must not be able
to be preempted or to be interrupted in RT.

Always actually disable interrupts during
synchronization cycle.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:15:16 -04:00
David S. Miller aa3449ee9c sparc64: Fix argument sign extension for compat_sys_futex().
Only the second argument, 'op', is signed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-02 01:13:35 -04:00
Sam Ravnborg 1bbc906077 sparc32: fix sparse warnings in leon_smp.c
Fix following warnings:
leon_smp.c:133:6: warning: symbol 'leon_smp_setbroadcast' was not declared. Should it be static?
leon_smp.c:151:14: warning: symbol 'leon_smp_getbroadcast' was not declared. Should it be static?
leon_smp.c:269:6: warning: symbol 'leon_irq_rotate' was not declared. Should it be static?
leon_smp.c:355:6: warning: symbol 'leonsmp_ipi_interrupt' was not declared. Should it be static?
leon_smp.c:457:6: warning: symbol 'leon_cross_call_irq' was not declared. Should it be static?

Add static.
Remove unused functions.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg 65199b0a8c sparc32: fix sparse warnings in sun4d_smp.c
Fix following warnings:
sun4d_smp.c:113:13: warning: symbol 'smp4d_boot_cpus' was not declared. Should it be static?
sun4d_smp.c:121:5: warning: symbol 'smp4d_boot_one_cpu' was not declared. Should it be static?
sun4d_smp.c:162:13: warning: symbol 'smp4d_smp_done' was not declared. Should it be static?
sun4d_smp.c:353:6: warning: symbol 'smp4d_cross_call_irq' was not declared. Should it be static?
sun4d_smp.c:363:6: warning: symbol 'smp4d_percpu_timer_interrupt' was not declared. Should it be static?

Add proper declarations

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg b8417de3a7 sparc32: fix sparse warnings in sun4m_smp.c
Fix following warnings:
sun4m_smp.c:72:13: warning: symbol 'smp4m_boot_cpus' was not declared. Should it be static?
sun4m_smp.c:78:5: warning: symbol 'smp4m_boot_one_cpu' was not declared. Should it be static?
sun4m_smp.c:120:13: warning: symbol 'smp4m_smp_done' was not declared. Should it be static?
sun4m_smp.c:230:6: warning: symbol 'smp4m_cross_call_irq' was not declared. Should it be static?
sun4m_smp.c:240:6: warning: symbol 'smp4m_percpu_timer_interrupt' was not declared. Should it be static?

Add proper declarations.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg 8b45c79649 sparc32: fix sparse warnings in leon_pmc.c
Fix following warnings:
leon_pmc.c:15:14: warning: symbol 'pmc_leon_fixup_ids' was not declared. Should it be static?
leon_pmc.c:22:5: warning: symbol 'pmc_leon_need_fixup' was not declared. Should it be static?
leon_pmc.c:41:6: warning: symbol 'pmc_leon_idle_fixup' was not declared. Should it be static?
leon_pmc.c:65:6: warning: symbol 'pmc_leon_idle' was not declared. Should it be static?

Add static to definitions.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg 4007b65a93 sparc32: fix sparse warnings in leon_kernel.c
Fix following warnings:
leon_kernel.c:40:15: warning: symbol 'leon3_gptimer_idx' was not declared. Should it be static?
leon_kernel.c:68:6: warning: symbol 'leon_eirq_setup' was not declared. Should it be static?
leon_kernel.c:273:13: warning: symbol 'leon_percpu_timer_ce_interrupt' was not declared. Should it be static?

Define symbols as static.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg 985edb5b16 sparc: fix sparse warnings in of_device_common.c
Fix following warnings (both sparc32 and sparc64):
of_device_common.c:13:14: warning: symbol 'irq_of_parse_and_map' was not declared. Should it be static?
of_device_common.c:24:5: warning: symbol 'of_address_to_resource' was not declared. Should it be static?
of_device_common.c:37:14: warning: symbol 'of_iomap' was not declared. Should it be static?

Add missing includes.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:27 -04:00
Sam Ravnborg 9edfae3f69 sparc32: fix sparse warnings in unaligned_32.c
Fix following warnings:
unaligned_32.c:146:15: warning: symbol 'safe_compute_effective_address' was not declared. Should it be static?
unaligned_32.c:235:17: warning: symbol 'kernel_unaligned_trap' was not declared. Should it be static?
unaligned_32.c:319:17: warning: symbol 'user_unaligned_trap' was not declared. Should it be static?

Add proper declarations in kernel.h + setup.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg c8c8782d89 sparc32: fix sparse warning in ptrace_32.c
Fix following warning:
ptrace_32.c:444:16: warning: symbol 'syscall_trace' was not declared. Should it be static?

Add declaration in kernel.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg c0b0ba8486 sparc32: fix sparse warnings in smp_32.c
Fix following warnings:
smp_32.c:300:6: warning: symbol 'arch_cpu_pre_starting' was not declared. Should it be static?
smp_32.c:320:6: warning: symbol 'arch_cpu_pre_online' was not declared. Should it be static?
smp_32.c:347:6: warning: symbol 'sparc_start_secondary' was not declared. Should it be static?

Add missing static definition.

This left one warning:
   warning: symbol 'setup_profiling_timer' was not declared.

This is a global symbol that has no declaration in any global header.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg a3ee8faa1b sparc32: fix sparse warnings in auxio_32.c
Fix following warnings:
auxio_32.c:23:14: warning: symbol 'auxio_register' was not declared. Should it be static?
auxio_32.c:26:13: warning: symbol 'auxio_probe' was not declared. Should it be static?
auxio_32.c:108:13: warning: symbol 'auxio_power_probe' was not declared. Should it be static?

Add proper decalarations for the above.

The leaves one sparse warning:
auxio_32.c:130:33: warning: cast removes address space of expression

This is here:
    auxio_power_register = (unsigned char *) of_ioremap()

This is __iomem that is removed from return value of of_ioremap()
The pointer is later used without any helpers in process_32.c:
    *auxio_power_register |= AUXIO_POWER_OFF;

It would be simple to introduce a few sbus() helpers.
But as I was not sure this was correct the warning are left as-is.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg 3731e19910 sparc32: fix sparse warnings in leon_pci_grpci2.c
Fix following warnings:
leon_pci_grpci2.c:218:1: warning: symbol 'grpci2_dev_lock' was not declared. Should it be static?
leon_pci_grpci2.c:219:20: warning: symbol 'grpci2priv' was not declared. Should it be static?
leon_pci_grpci2.c:221:5: warning: symbol 'grpci2_map_irq' was not declared. Should it be static?
leon_pci_grpci2.c:564:6: warning: symbol 'grpci2_hw_init' was not declared. Should it be
static?

+ a lot of these:
leon_pci_grpci2.c:252:9: warning: incorrect type in argument 1 (different address spaces)

Declare the symbols static as they are only used in this file.
Added missing __iomem annotations.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg d65f0cd375 sparc32: fix sparse warnings in leon_pci_grpci1.c
Fix following warnings:
leon_pci_grpci1.c:104:5: warning: symbol 'grpci1_map_irq' was not declared. Should it be static?
leon_pci_grpci1.c:420:6: warning: symbol 'grpci1_hw_init' was not declared. Should it be static?
+ a lot of these:
leon_pci_grpci1.c:693:18: warning: incorrect type in argument 1 (different address spaces)

Added missing static to definitions.
Added __iomem annotations

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg 6b5f02f31b sparc32: fix sparse warnings in tadpole.c
Fix following warnings:
tadpole.c:21:6: warning: symbol 'cpu_pwr_save' was not declared. Should it be static?
tadpole.c:101:13: warning: symbol 'clock_stop_probe' was not declared. Should it be static?

This actually revealed that cpu_pwr_save is only assigned.
It was left static with a TODO comment for now - this should be cleaned up later.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00
Sam Ravnborg 8885ec7ca9 sparc32: fix sparse warning in devices.c
Fix following warning:
devices.c:114:13: warning: symbol 'device_scan' was not declared. Should it be static?

Add prototype to asm/setup.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-29 01:12:26 -04:00